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SWEAT CHLORIDE
MessageSweat collections are performed by Pulmonary Function Lab personnel (304-598-3243). Scheduled collections are performed M-F from 8am to 3pm. Physician offices can schedule sweat collection by calling 304-598-4147.
Test Code
LAB304899
CPT Codes
82438, 89230
Instructions
Sweat samples are collected by Ruby Memorial Pulmonary Function Lab personnel and testing must be pre-scheduled as above. Sample analysis is performed in the Chemistry Lab. Specimen needs to be delivered to the Chemistry Lab immediately after collection.
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Inadequate sweat collection. Inadequate collections can occur when patients are dehydrated or have skin rashes in the collection areas.
Methodology
Pilocarpine Iontophoresis/Chloridometer
Setup Schedule
Sweat Collection performed by Pulmonary Function Lab personnel M-F from 8am to 3pm Sweat analysis performed in Chemistry Lab on receipt
Reference Range
Normal <30 mmol/L
Equivocal 30-59 mmol/L*
Abnormal ≥60 mmol/L*
* considered critical by the laboratory and will be called to the Cystic Fibrosis Center as well as the ordering provider.
Equivocal 30-59 mmol/L*
Abnormal ≥60 mmol/L*
* considered critical by the laboratory and will be called to the Cystic Fibrosis Center as well as the ordering provider.
Performing Laboratory
West Virginia University Hospital, Inc.
